_____ is the major component of natural gas.
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___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.
Konkani is the official language of _________.
Who is the author of the speculative fiction book 'Half of What I Say'?
The Middle Ages in Western Europe was characterized by
Who was the founder of Banaras Hindu University?
_________ is an example of intrusive igneous rock.
Which planet is known as red planet?